Safety and Security Dependencies for Gridshield

Reza Soltani*, Baver Ozceylan, Milan Lopuhaä-Zwakenberg, Christina Kolb, Gerwin Hoogsteen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Present day cyber-physical systems, such as the Smart Grid, lead to the integration of multiple sub-systems into one single intertwined system. Such systems are characterized by many inter-dependencies between these sub-systems. This makes it complex to correctly assess the impact of new defence mechanisms with respect to the safety and security of the system as a whole. Existing formalisms such as fault and attack trees cannot describe the full system complexity.This paper presents a novel integrated model, namely the Attack-Fault-Defence Tree (AFDT), and tools to analyse such cyber-physical systems. The presented visual representation allows experts from various disciplines to discuss system dependencies together. In addition, we also present how minimum cut sets can be derived to formally quantify how the safety and security of the overall system is enhanced with the implementation of new defences. The presented AFDT is applied to the Gridshield concept, a novel defence mechanism to prevent grid overloading in power grids due to simultaneous charging of electric vehicles.

Original languageEnglish
Title of host publicationIEEE PES Innovative Smart Grid Technologies Europe, ISGT EUROPE 2024
EditorsNinoslav Holjevac, Tomislav Baskarad, Matija Zidar, Igor Kuzle
PublisherIEEE
Number of pages6
ISBN (Electronic)9789531842976
DOIs
Publication statusPublished - 11 Feb 2025
Event2024 IEEE PES Innovative Smart Grid Technologies Europe Conference, ISGT EUROPE 2024 - Dubrovnik, Croatia
Duration: 14 Oct 202417 Oct 2024

Publication series

NameIEEE PES Innovative Smart Grid Technologies Europe, ISGT EUROPE 2024

Conference

Conference2024 IEEE PES Innovative Smart Grid Technologies Europe Conference, ISGT EUROPE 2024
Abbreviated titleISGT EUROPE
Country/TerritoryCroatia
CityDubrovnik
Period14/10/2417/10/24

Keywords

  • 2025 OA procedure
  • cyber-physical systems
  • defences
  • fault trees
  • protection schemes
  • risk mitigation
  • attack trees

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